With our many years of experience, we certainly do custom work! Depending on your needs, we tailor a server to your needs.
BigBlueButton itself does not recommend more than 100 people in 1 room. But we can offer a solution for more than 100 people. For example, by creating multiple rooms or if that is not desirable, we can set up a webinar with streaming to YouTube.
We also have a great deal of experience with the Moodle LMS and can help you integrate BigBlueButton into Moodle.